Russian military brings some air and sea forces to combat-readiness in drills ordered by Putin

Russian President Vladimir Putin speaks during a meeting of the Victory Day celebrations organizing committee in the Kremlin in Moscow, Russia, Tuesday, March 17, 2015. Russia's foreign minister says the leader of North Korea is among 26 world leaders who have accepted invitations to Moscow to take part in celebrations marking the 70th anniversary of the Soviet Union's victory over Nazi Germany. (AP Photo/Sergei Ilnitsky, Pool)
(The Associated Press)

FILE In this Tuesday, March 18, 2014 file photo Russian President Vladimir Putin signs a treaty for Crimea to join Russia during a signing ceremony after addressing the Federal Assembly in the Kremlin in Moscow, Russia. Russia marks one year anniversary of annexation of Ukraine's Crimea peninsula this week. (AP Photo/Alexander Zemlianichenko)
(The Associated Press)

FILE - In this Tuesday, May 7, 2013 file photo, Russian Iskander missiles make their way through Red Square during a rehearsal for the Victory Day military parade in Moscow, Russia. Russia plans to station state-of-the art missiles to its westernmost Baltic exclave and deploy nuclear-capable bombers to Crimea as part of massive war games intended to showcase the nation's resurgent military power amid bitter tensions with the West over Ukraine. (AP Photo/Alexander Zemlianichenko, File)
(The Associated Press)